Smart Way of Learning Math

K-Math Workbook

Strengthen your child’s sixth-grade Math skills with next generation tools of the K-Math Workbook. In this workbook, all practice pages are fully organized by the Common Core State Standards (CCSS). The progressive practices and assessments integrate state-of-the-art tools in this workbook, so your child will strengthen skills for the state math exam and CCSS with fun!

Nicole is planning to donate $4$ dozens of non perishable foods to charity. Among $10$ non perishable foods she already has, $30\%$ of them are canned foods and the rest of them are dried foods. she wanted to havehalf of canned foods and half of dried foods out of total $4$ dozens. How many canned foods does she have to buy?A. $21$A. $21$B. $38$C. $17$D. $45$E. $3$

1. First, we need to know how many canned food she already has. Since there are $30\%$ of $10$ canned foods, we can get the number of canned foods by calculating $\displaystyle \frac{30}{100} \times 10 = 3$.2. Remember $4$ dozen is $48$. Since she wants to have a half of canned foods out of $48$, the number of canned foods to donate to charity is $24$. She already has $3$ number of canned foods. So, she needs to buy ${24} - {3} = 21 $ number of canned foods. No More Steps

Bob has to bring $4$ dozens of pens to school. Among $10$ pens he already has, $30\%$ of them are blue pens and the rest of them are black pens. Bob wanted to havehalf of black pens and half of blue pens out of total $4$ dozens. How many blue pens does he have to buy?A. $21$A. $21$B. $38$C. $17$D. $45$E. $3$

1. First, Bob needs to know how many blue pens he already has. Because there are $30\%$ of $10$ blue pens, he can get the number of blue pens by calculating $\displaystyle \frac{30}{100} \times 10 = 3$.2. Remember $4$ dozen is $48$. Because he wanted to have a half of blue pens out of $48$, the number of blue pens to bring to school is $24$. Bob already has $3$ number of blue pens.So, he needs to buy ${24} - {3} = 21 $ number of blue pens. No More Steps